While these things were doing, Achilles ceased not to pursue and slay the men of Troy, and Priam stood on a tower of the wall and saw the people. Sore troubled was he, and he hastened down to the gates and said to the keepers, "Keep the gates open, that the people may enter in, for they fly before Achilles." So the keepers held the gates open, and the people hastened in, wearied with toil and thirst, and covered with dust, and Achilles followed close upon them. And that hour would the Greeks have taken the city of Troy, but that Apollo saved it. For he put courage into the heart of Agenor, standing also by him, that he should not be slain. And Agenor thought within himself:-- A-ge'-nor. "Shall I flee with these others? Nay, for Achilles will take me and slay me, and I shall die as a coward dies. Or shall I flee across the plain to Ida, and hide me in the thickets, and come back at nightfall to the city? Yet should he see me he will overtake me and smite me, so swift of foot is lie and strong. But what if I stand to meet him before the gates? He, too, is a mortal man, and his flesh may be pierced by the spear." Wherefore he stood till Achilles should come near. And when he came he cast his spear, striking the leg below the knee, but the greave turned off the spear, so strong was it. And when Achilles would have slain him, lo! Apollo lifted him up and set him within the city. And that the men of Troy might have time to enter, he took upon him Agenor's shape. And the false Agenor fled, and Achilles pursued. But meanwhile the men of Troy flocked into the city, nor did they stay to ask who was safe and who was dead, in such haste and fear did they flee. Only Hector remained outside the walls, standing in front of the great Scæan gates. But all the while Achilles was fiercely pursuing the false Agenor, till at last Apollo turned and spake to him:-- "Why dost thou pursue me, swift-footed Achilles? Hast thou not yet found out that I am a god, and that all thy fury is in vain? And now all the sons of Troy are safe in their city, and thou art here, far out of the way, seeking to slay me, who cannot die." In great wrath Achilles answered him: "Thou hast done me wrong in so drawing me away from the wall, great archer, most mischief-loving of all the gods that are. Had it not been for this, many a Trojan more had bitten the ground. Thou hast robbed me of great glory, and saved thy favourites. O that I had the power to take vengeance on thee! Thou wouldst have paid dearly for thy cheat!" Then he turned and rushed towards the city, swift as a race-horse whirls a chariot across the plain. Old Priam spied him from the walls, with his glittering armour, bright as that brightest of the stars--men call it Orion's dog--which shines at vintage-time. And the old man groaned aloud when he saw him, and stretching out his hands, cried to his son Hector, who stood before the gates, eager to do battle with this dread warrior:-- O-ri'-on.